Fastening device for grain-doors of freight-cars



(No Model J. M. GRISWOLD.

FASTENING DEVICE FOR GRAIN DOORS 0]? FREIGHT CARS. No. 375,447. PatentedDec. 2'7, 1887-.

7 UNITED STATES PATENT OFFICE.

. bulk in railroad freight-cars; second, greater 5 at T, saw-grooves areout, as seen at a, from fourths of an inch to an inch in width, and

JOSEPH M. GRISW'OLD, OF BROOKLYN, MICHIGAN.

FASTENING DEVICE FOR GRAIN-DOORS OF FREIGHT-CARS.

SPECIFICATION forming part of Letters Patent No. 375,447, dated December2 1887.

Application filed August 2, 1886.

To all whom it may concern.-

Be it known that I, J osErHM. GRISWOLD, a citizen of the United States,residing at Brooklyn, in the county of Jackson and State of Michigan,have invented a new and useful Fastening Device for Grain-Doors ofFreight Cars, of which the following is a specification.

My invention relates to improvements in grain-doors and their fasteningsfor freightcars; and the objects of my improvements are, first, tosecurea grain-door easily and quickly operated, both in preparing toload and unload cars with grain or other produetions'carried in securityin preventing loss from leakage and escape of grain while intransportation; third, a door less liable to be injured in itsmanipulations while being handled and arranged for loading or unloading,and, fourth, a door whose attachments for fastening and holding the samein place do not interfere with the convenience or capacity of the carwhen used for other kinds of freight.

Figure l is a perspective of the interior of a grain-car, with the doorwith its attachments in position in elevation; Fig. 2, an elevation ofthe grain-door with its attached ribs or bars A A; Fig. 3, face and sidedetail broken-away views of the bar B, with its stud c and guideplate E;Fig. 4, a view of the hand-wheel C; Fig. 5, a face View of the bar A,with its studs b, as attached to the wood of the grain-door, and Fig. 5a section on line as x of Fig. 5; Fig. 6, a face view of thesupporting-bracket D, and Fig. .6 a side view of the same; Fig. 7, aview of the upper end of bar B.

In the center of the inside face of each of the doorway-posts of thecar-frame, as shown the floor of the car upward as far as the height ofthe door may require, andcontinued at a slight angle to the sides of theposts. These grooves are to be out from threefrom a quarter to-a thirdof an inch in depth, the upright part of said grooves being for thepurpose of receiving the bars or ribs A A on the grain-door. Said barsare designed to engage said grooves for the purpose of preventing anylateral or endwise movement of said door, and for the further purpose'ofpreventing any Serial No. 209,820. (No mo:lel.l

escape of grain between the ends of said door and the doorway-posts whenin position.

To the outside and near the ends of the grain-door are attached, byscrews or rivets, iron .bars or ribs, as represented at A, Fig. 2, inwidth to work freely in the grooves of the doorway-posts, and inthickness to set tight to the inside face or bottom of the grooves inthe doorwayposts, and allowing the ends of said door opposite said poststo also be brought tight against the said posts. Said bars are to beturned under and matched into the bottom of the wood of the door, and,if desired, to be turned up on the inner side of said door, as seen atA, Fig. 5. The lower and inside ends of bars A A, after being turnedunder into the wood of the door, are designed to face and en gage thestuds K K to assist in forcing the bars A A tightly into the grooves.The upper ends of said bars A A are to be halved into studs orprojections,'which said studs are beveled on their inner sides, as seenat b, Fig. 5, the heads of said bars or heels of said studs beingapproximately flush with and the studs projecting above the top of thedoor. S and T represent the wood or boards of the door. The bars A Abeing engaged in the grooves a a, the studs 1) b are designed to engagethe studs 0 c of the bars B B.

At the ends of the ordinary iron'threshold, (represented at H, Fig. 1,)against the flanges of which the bottom and outside of the graindoorusually rest, are placed studs, as seen at K, Fig. 1, fastened to thefloor by screws and facing the doorway-posts, the said studs being aboutthe elevation of the flanges on the iron threshold, and with the face ofthe studs slightly beveled, for the purpose of assisting in forcing thegrain-door into position and holding the bottom of said door firmly whenin position. The bars A A, engaging the grooves a a, the studs 1) b,engaging the studs 0 c, the studs K K, engaging and operating upon thelower ends of bars A A, said door is held from any inward or upwardmovement, the ends of the door are brought tightly against thedoorway-posts, and the bottom against the flange of the threshold H.

The bars B B (represented at B, Fig. l) aremade of iron, the lower partof the same size the lower ends having studs, as appears at B, Fig. 3,with beveled faces on the inside, corresponding and designed to engageor match into the studs on bars A A. The edges of the studs of bars B Bare to be slightly beveled crosswise, so that said studs shall matchsquarely on the top of the studs of bars A A, as appears at c. On theupper ends of the bars B B are out either a bench-screw or tapcutthread, as appears at B, about six inches in length. The said bars B Bare designed to fit into and work in the angular grooves in thedoorwayposts.

The hand-wheels G O are made of iron, the hubs of which are threaded towork upon the threaded ends of the bars B B, said hand-wheels to be aslarge in diameter as their location will permit.

To the sides of the doorway-posts are attached at a proper angle ironbrackets, as represented at D. Said brackets are constructed with jawsparallel with each other, the opening or recess between them being ofequal width of about two inches, and into which opening the hand-wheelsO C are to be placed. Holes on a line with the angular grooves in thedoorway-posts are to be made through both of said jaws, of a size topass the upper ends of the bars B B, the hand-wheels O 0 working withinsaid recess and upon the threads of said bars, moving said upper ends ofthe bars B B through said holes and raising and lowering said bars.

On the face of the inside of the doorwayposts, as shown at E, Fig. 1,are screwed iron plates covering the face of said doorway-posts for thespace of ten inches, for the purpose of holding in place and protectingthe bars B B in the grooves in which they are worked.

Resting the bottom of the door on and against the threshold H, the lowerand inside ends of the bars A Aplaced against the studs K K, andbringing the door upright, the bars A A entering the grooves a (t, thedoor is brought to its proper position, and by lowering the bars B B bymeans ofthehand-wheels O C, so that the studs of the bars B B shalloverlap and engage the studs of the bars A A, the guide-plates E Eholding said bars B B to their proper places, and continuing thepressure by the hand-wheels O C, the beveled sides of the studs B Bacting upon the beveled sides of the bars A A, and the beveled sides ofthe studs K K acting on the lower ends of the bars A A, the said bars AA are brought tight against the inner face of the grooves a a, the sidesof both ends of the grain-door are brought tight against thedoorway-posts, and 1 the bottom of the door tight to and against thethreshold H and its flange, and so held socurely in position for use.

To relieve the grain-door so as to unload a car, raise the bars B B bythe hand-wheels G 0 till said bars do not obstruct the moving of thegrain-door, and by pushing the top of the door inward, the grain will beallowed to escape at the sides and bottom as said door is graduallypushed outof position and hung up at the side of the ear. Vhen sohung,the floor and sides of the car are unobstructed by projectionsordinarily usedto fasten grain-do0rs in position.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. A door-frame for railroad freight-cars, with longitudinal grooves a acutin the inner face of the doorway-posts, in combination with the barsA A on a grain-door, and the forcing-bars B B, mountedin the frame-work,for the purposes as herein specified.

2. A door-frame for railroad freight-cars provided with grooves 11 a, incombination wit-h a door having bars or ribs A A,arranged on the outsideof the door to engage the grooves, and provided with studs 1) b, thebars B B, provided with studs 0 0, arranged to engage with the studs bb, and the studs K K, arranged to engage the lower ends of the bars A A,substantially as herein described.

3. The combination, with the grooved doorway-posts, of a grain-doorhaving bars A A, attached thereto, said bars provided with studs 1) 1),bars B B, engaging the grooves in the doorway posts, and provided withscrewthreaded ends and with studs 0 0, arranged to engage the studs 1)I) of bars A A, the brackets D l), hand-wheels O C, mounted therein foroperating the bars B B, and the guide-plates E E, attached to thedoorway-posts, substantially as and for the purpose specified.

4. The combination of the doorway-posts of a railroadcar having groovescm, the door having bars A A, provided with studs 1) b engaging in saidgrooves, the bars B B, havingstuds engaging with the studs on the bars AA, and having screw-threaded ends, theha-ndwheels 0 G, engaging thescrew-threaded ends of bars B B, the brackets D D, supporting saidhand-wheels, the guideplates E E for the bars B B, and the studs K K,all substantially and for the purposes as herein specified anddescribed.

JOSEPH M. GRISWOLD.

Vitnesses:

J. Run) OROWELL, FLORENCE J. G. COBB.

IIO

